| Flood Impacts |
| 30.0 | Record flood occurred in August 1875 and was estimated at 30 feet. With the completion of Cagles Mill Dam in 1953, it is unlikely that this height will ever be reached again. The river is nearly 1 mile wide and would submerge SR 46 & 59 by 2 feet. Great rural destruction occurs. Many rural evacuations, all roads in the flood plain and all levees are overtopped. Most river cabins and other structures in the flood plain are swept away. Residents on high ground are isolated. |
| 25.0 | Flood water isolate residents on high ground. |
| 24.0 | A very unusual flood. With Cagles Mill Reservoir in full operation since 1953, floods have not reached this level. |
| 23.0 | A large and unusual flood is in progress. Persons living in river cabins need to evacuate. Most county and local roads in the flood plain are underwater. Some residents on high ground need boats to reach or leave their homes. Levees protecting agricultural lands may overtop or fail. |
| 22.0 | An unusual flood is in progress. Many county and local roads extensively flood. Flood waters isolate some farm houses. Water is near the top of most agricultural levees. |
| 20.0 | Livestock in low flood plain areas may drown. Many county and local roads extensively flood. Persons in river cabins move cars and possibly belongings to high ground. Agricultural levees are threatened. Poland-Bowling Green Road is impassable. |
| 18.0 | Typical high water after heavy rains. This causes extensive flooding of bottomlands and floods many county roads. Persons living in river cabins are inconvenienced. Campers must move from low ground. Poland...Bowling Green road is impassable. |
| 17.0 | Flood waters covers considerable bottomlands and floods a few county roads including the Poland to Bowling Green Road. |
| 16.0 | Low land flooding is occurring along portions of the river. A few county roads are impassable. A frequently reached level from December through June. An unusual level for September and October. This level threatens campers. |
| 14.0 | Flooding occurs along the lowest levels of the river. High water affects a few county roads. Normally, this level does not bother anyone if the river goes down in 1 to 2 days. |
